Crystal Vibes Gemini D# and Perfect Pitch D# Notes Quartz Crystal Singing Bowl #cg7dsp20dsp10 37000104
D# Note Bowl
Note: D# +20 cents Octave: 4 Frequency: 314.4 Hz
D# Note Bowl
Note: D# +10 cents Octave: 4 Frequency: 312.7 Hz
Frequency Difference: 1.7 Hz (Delta Binaural)
Both ends of the Gemini bowl are Clear Quartz Crystal, 7 inches in diameter, connected at the base by a hollow handle, allowing for easy handling, without affecting the sustain of the notes.
Rim Thickness: ~2.2 mm
For more information on the 5 Main Brainwaves, you may visit the following link: https://www.silverskyimports.com/pages/information/delta-theta-alpha-beta-gamma-frequency-brain-waves.html
